It sounds so grand, so magniloquent. It was an A-N-O-M-A-L-Y But at least it is now under control. <need a smiley wiping sweat off it's brow>

According to Florida Today, large plumes of smoke were seen emanating from the area, indicating something had gone wrong. There were no injuries caused by the anomaly, which is now under control, according to officials with the 45th Space Wing based at the Air Force station.
"Earlier today, SpaceX conducted a series of engine tests on a Crew Dragon test vehicle on our test stand at Landing Zone 1 in Cape Canaveral, Florida," a company spokesperson told Space.com in a statement. "The initial tests completed successfully but the final test resulted in an anomaly on the test stand."

So here's the question, Can an anomaly be truly under control if we don't even know what it is or what caused it?

Heck for all we know, it could have been a hooker smoking a cigarette on the crew gantry waiting to find out if they could give her a lift to the International Space Station.

It looked to me from the video and smoke cloud that a high pressure propellant tank or pressure sphere let go, probably in one of the Super Dracos... Instant kablooey and release of a large cloud of red nitrogen tetroxide ...

Well, it will give Mr. Bezos a better chance to get his new Shepherd up with passengers to continue the challenge that Blue Origin did it first with of course the standard argument, yeah, but Blue Origin is doing it sub orbital.